/*
 * @Descripttion: 
 * @version: 
 * @Author: weni09
 * @Date: 2021-04-20 14:11:07
 * @LastEditors: weni09
 * @LastEditTime: 2021-06-03 16:26:32
 * @FilePath: \blogfastapi\frontend_blog\src\utils\index.js
 */

 /**
   * @param {time} time
   * @returns {string}
   */
export function convertUTCToLocal(time){
  if(!time){
    return '-';
  }
  var date=new Date(time);
  // console.log('con' + date)
  var year=date.getFullYear();
  /* 在日期格式中，月份是从0开始的，因此要加0
   * 使用三元表达式在小于10的前面加0，以达到格式统一  如 09:11:05
   * */
  var month= date.getMonth()+1<10 ? "0"+(date.getMonth()+1) : date.getMonth()+1;
  var day=date.getDate()<10 ? "0"+date.getDate() : date.getDate();
  var hours=date.getHours()<10 ? "0"+date.getHours() : date.getHours();
  var minutes=date.getMinutes()<10 ? "0"+date.getMinutes() : date.getMinutes();
  var seconds=date.getSeconds()<10 ? "0"+date.getSeconds() : date.getSeconds();
  // 拼接
  return year+"-"+month+"-"+day+" "+hours+":"+minutes+":"+seconds;
}

export function parseTime(time, cFormat) {
    if (arguments.length === 0) {
      return null
    }
    const format = cFormat || '{Y}-{m}-{d} {h}:{i}:{s}'
    let date
    if (typeof time === 'object') {
      date = time
    } else {
      if ((typeof time === 'string')) {
        if ((/^[0-9]+$/.test(time))) {
          // support "1548221490638"
          time = parseInt(time)
        } else {
          // time = time.replace(new RegExp(/-/gm), '/')
          // console.log("time1:" + time)
          time = '' + time
        }
      }
  
      if ((typeof time === 'number') && (time.toString().length === 10)) {
        time = time * 1000
      }
      date = new Date(time)
    }
    const formatObj = {
      y: date.getFullYear().toString().substr(2, 2),
      Y: date.getFullYear(),
      m: date.getMonth() + 1,
      d: date.getDate(),
      h: date.getHours(),
      i: date.getMinutes(),
      s: date.getSeconds(),
      a: date.getDay()
    }
    const time_str = format.replace(/{([Yymdhisa])+}/g, (result, key) => {
      const value = formatObj[key]
      // Note: getDay() returns 0 on Sunday
      if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value ] }
      return value.toString().padStart(2, '0')
    })
    return time_str
  }
  
  /**
   * @param {number} time
   * @param {string} option
   * @returns {string}
   */
  export function formatTime(time, option) {
    // console.log('forstart ' + ('' + time).length)
    if (('' + time).length === 10) {
      time = parseInt(time) * 1000
    } else {
      time = ''+time
      // console.log('for3 ' + time)
    }
    const date = new Date(time)
    // console.log('for1 ' + d)
    const now = Date.now()
    const diff = (now - date) / 1000
    // console.log('for2 ' +diff)
    const month = date.getMonth() + 1
    if (diff < 30) {
      return '刚刚'
    } else if (diff < 3600) {
      // less 1 hour
      return Math.ceil(diff / 60) + '分钟前'
    } else if (diff < 3600 * 24) {
      return Math.ceil(diff / 3600) + '小时前'
    } else if (diff < 3600 * 24 * 2) {
      return '1天前'
    }
    if (option) {
      return parseTime(time, option)
    } else {
      return (
        date.getFullYear() + 
        '年' +
        month +
        '月' +
        date.getDate() +
        '日' +
        date.getHours() +
        '时' +
        date.getMinutes() +
        '分'
      )
    }
  };
  
//设置对象中的date字段格式
export function setDateFormat(obj,fieldName,formatStr){
  // console.log(obj.data,typeof(obj.data),Array.isArray(obj.data))
  if (obj.data && Array.isArray(obj.data))
  {
  for (let i=0;i<obj.data.length;i++){
    // console.log("obj.data: " + JSON.stringify(obj.data[i]) + " " + obj.data.length)
        if(obj.data[i][fieldName]){
          // console.log("obj.data.i.fieldName: " + JSON.stringify(obj.data[i][fieldName]) + fieldName)
          obj.data[i][fieldName]=formatTime(obj.data[i][fieldName],formatStr)
          // console.log("obj.data.i.fieldName1: " + JSON.stringify(obj.data[i][fieldName]) + fieldName)
        };
      }
  }
  else if(obj.data[fieldName]) {
   obj.data[fieldName]=formatTime(obj.data[fieldName],formatStr)
  };
};

  /**
   * @param {string} url
   * @returns {Object}
   */
  export function getQueryObject(url) {
    url = url == null ? window.location.href : url
    const search = url.substring(url.lastIndexOf('?') + 1)
    const obj = {}
    const reg = /([^?&=]+)=([^?&=]*)/g
    search.replace(reg, (rs, $1, $2) => {
      const name = decodeURIComponent($1)
      let val = decodeURIComponent($2)
      val = String(val)
      obj[name] = val
      return rs
    })
    return obj
  }
  
  /**
   * @param {string} input value
   * @returns {number} output value
   */
  export function byteLength(str) {
    // returns the byte length of an utf8 string
    let s = str.length
    for (var i = str.length - 1; i >= 0; i--) {
      const code = str.charCodeAt(i)
      if (code > 0x7f && code <= 0x7ff) s++
      else if (code > 0x7ff && code <= 0xffff) s += 2
      if (code >= 0xDC00 && code <= 0xDFFF) i--
    }
    return s
  }
  
  /**
   * @param {Array} actual
   * @returns {Array}
   */
  export function cleanArray(actual) {
    const newArray = []
    for (let i = 0; i < actual.length; i++) {
      if (actual[i]) {
        newArray.push(actual[i])
      }
    }
    return newArray
  }
  
  /**
   * @param {Object} json
   * @returns {Array}
   */
  export function param(json) {
    if (!json) return ''
    return cleanArray(
      Object.keys(json).map(key => {
        if (json[key] === undefined) return ''
        return encodeURIComponent(key) + '=' + encodeURIComponent(json[key])
      })
    ).join('&')
  }
  
  /**
   * @param {string} url
   * @returns {Object}
   */
  export function param2Obj(url) {
    const search = url.split('?')[1]
    if (!search) {
      return {}
    }
    return JSON.parse(
      '{"' +
        decodeURIComponent(search)
          .replace(/"/g, '\\"')
          .replace(/&/g, '","')
          .replace(/=/g, '":"')
          .replace(/\+/g, ' ') +
        '"}'
    )
  }
  
  /**
   * @param {string} val
   * @returns {string}
   */
  export function html2Text(val) {
    const div = document.createElement('div')
    div.innerHTML = val
    return div.textContent || div.innerText
  }
  
  /**
   * Merges two objects, giving the last one precedence
   * @param {Object} target
   * @param {(Object|Array)} source
   * @returns {Object}
   */
  export function objectMerge(target, source) {
    if (typeof target !== 'object') {
      target = {}
    }
    if (Array.isArray(source)) {
      return source.slice()
    }
    Object.keys(source).forEach(property => {
      const sourceProperty = source[property]
      if (typeof sourceProperty === 'object') {
        target[property] = objectMerge(target[property], sourceProperty)
      } else {
        target[property] = sourceProperty
      }
    })
    return target
  }
  
  /**
   * @param {HTMLElement} element
   * @param {string} className
   */
  export function toggleClass(element, className) {
    if (!element || !className) {
      return
    }
    let classString = element.className
    const nameIndex = classString.indexOf(className)
    if (nameIndex === -1) {
      classString += '' + className
    } else {
      classString =
        classString.substr(0, nameIndex) +
        classString.substr(nameIndex + className.length)
    }
    element.className = classString
  }
  
  /**
   * @param {string} type
   * @returns {Date}
   */
  export function getTime(type) {
    if (type === 'start') {
      return new Date().getTime() - 3600 * 1000 * 24 * 90
    } else {
      return new Date(new Date().toDateString())
    }
  }
  
  /**
   * 获取时间间隔
   * @param startTime
   * @param endTime
   */
  export function getTimeInterval(startDate, endDate = Date.now()) {
    if (arguments.length === 0) {
      return null
    }
    let startTime;
    let endTime;
    if (typeof startDate === 'object') {
      startTime = startDate.getTime();
    } else {
      startTime = startDate;
    }
    if (typeof endDate === 'object') {
      endTime = endDate.getTime();
    } else {
      endTime = endDate;
    }
    let dateInterval =  endTime - startTime;
    // //计算出相差天数
    let days = Math.floor(dateInterval / (24 * 60 * 60 * 1000));
    //计算小时数
    let hourLevel = dateInterval % (24 * 60 * 60 * 1000);
    let hours = Math.floor(hourLevel / (60 * 60 * 1000))
    //计算分钟数
    let minutesLevel = hourLevel % (60 * 60 * 1000);
    let minutes = Math.floor(minutesLevel / (60 * 1000));
    //计算秒数
    let seconds = Math.round((minutesLevel % (60 * 1000)) / 1000);
    return `${days} 天 ${hours} 时 ${minutes} 分 ${seconds} 秒`;
  }
  
  /**
   * @param {Function} func
   * @param {number} wait
   * @param {boolean} immediate
   * @return {*}
   */
  export function debounce(func, wait, immediate) {
    let timeout, args, context, timestamp, result
  
    const later = function() {
      // 据上一次触发时间间隔
      const last = +new Date() - timestamp
  
      // 上次被包装函数被调用时间间隔 last 小于设定时间间隔 wait
      if (last < wait && last > 0) {
        timeout = setTimeout(later, wait - last)
      } else {
        timeout = null
        // 如果设定为immediate===true，因为开始边界已经调用过了此处无需调用
        if (!immediate) {
          result = func.apply(context, args)
          if (!timeout) context = args = null
        }
      }
    }
  
    return function(...args) {
      context = this
      timestamp = +new Date()
      const callNow = immediate && !timeout
      // 如果延时不存在，重新设定延时
      if (!timeout) timeout = setTimeout(later, wait)
      if (callNow) {
        result = func.apply(context, args)
        context = args = null
      }
  
      return result
    }
  }
  
  /**
   * This is just a simple version of deep copy
   * Has a lot of edge cases bug
   * If you want to use a perfect deep copy, use lodash's _.cloneDeep
   * @param {Object} source
   * @returns {Object}
   */
  export function deepClone(source) {
    if (!source && typeof source !== 'object') {
      throw new Error('error arguments', 'deepClone')
    }
    const targetObj = source.constructor === Array ? [] : {}
    Object.keys(source).forEach(keys => {
      if (source[keys] && typeof source[keys] === 'object') {
        targetObj[keys] = deepClone(source[keys])
      } else {
        targetObj[keys] = source[keys]
      }
    })
    return targetObj
  }
  
  /**
   * @param {Array} arr
   * @returns {Array}
   */
  export function uniqueArr(arr) {
    return Array.from(new Set(arr))
  }
  
  /**
   * @returns {string}
   */
  export function createUniqueString() {
    const timestamp = +new Date() + ''
    const randomNum = parseInt((1 + Math.random()) * 65536) + ''
    return (+(randomNum + timestamp)).toString(32)
  }
  
  /**
   * Check if an element has a class
   * @param {HTMLElement} elm
   * @param {string} cls
   * @returns {boolean}
   */
  export function hasClass(ele, cls) {
    return !!ele.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'))
  }
  
  /**
   * Add class to element
   * @param {HTMLElement} elm
   * @param {string} cls
   */
  export function addClass(ele, cls) {
    if (!hasClass(ele, cls)) ele.className += ' ' + cls
  }
  
  /**
   * Remove class from element
   * @param {HTMLElement} elm
   * @param {string} cls
   */
  export function removeClass(ele, cls) {
    if (hasClass(ele, cls)) {
      const reg = new RegExp('(\\s|^)' + cls + '(\\s|$)')
      ele.className = ele.className.replace(reg, ' ')
    }
  }


/**
 * 
 * 移除空格
 */
export function removeBlank(strObj){
      if (strObj && typeof(strObj!==String)){
      strObj = strObj.toString(10)
      return strObj.replace(/\s*/g,"")
      }
}
